How do we best document & manage plants to ensure compliance with CBD? How should gardens treat plants obtained prior to 1993 before CBD came into force? What should gardens do with plants obtained since 1993 which are not in compliance?

What are best practices when using plants covered by CBD for plant breeding, plant sales, and other commercial uses? Should these also apply to plant societies and others using public gardens for their activities? What about wild origin plants obtained from commercial sources?